From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 38847221D92; Tue, 29 Apr 2025 18:04:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745949894; cv=none; b=YdVEr0+6btD5F194pYZwr3RGpqcPW62HJGvEEM/zoDv30ndO5cXOXutxNAZpjACpnZb6Fllns1iSf5JHcDV74r0u0W44kP2vE8JPQAEBYuIyd16NI//K/XOsNCr6JKD02PODk40VqbAoSLHvlYh1Nb+U+OA9jcG6lWZ8wmF8jmM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745949894; c=relaxed/simple; bh=oCBE3xGyo7b1r5IFcMxvdLPtdPKjwVPERuMtpUCPKMY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oN1PiT+hBUZAcimb6OEI7wVcHimi2HWevC/a/HOUe88/NkeWe6bfPPvl6GUwnts5j5YsSMEusYSvEaSawex77fGzlZQ+h3EiMrfW2Oinl0t4wE/JODIZrv9yo/2kA+03g3O47KzY1oRlF9P81cxQLKUJ6kFpHvjFxboFIOQ1R6s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cgMo93qW; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="cgMo93qW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9CF41C4CEE3; Tue, 29 Apr 2025 18:04:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745949894; bh=oCBE3xGyo7b1r5IFcMxvdLPtdPKjwVPERuMtpUCPKMY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cgMo93qWWs3i4RleNKwqYF8CvingAK6qU5VTQV2G0Se8oLMDhSo4bcf0631/3xfjz 0OIdJdoT7nSAmd143m0PxjN32taqgHNe0Hv5HKyh1FfwjAX7gHd2Gt51WHX/cZsnht b7ZA8TUEcRnd3fskPvpW5t6e86oxvYCAI227C/0Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Peter Robinson , Ping-Ke Shih , Ladislav Michl Subject: [PATCH 6.1 061/167] wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb Date: Tue, 29 Apr 2025 18:42:49 +0200 Message-ID: <20250429161054.240292255@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161051.743239894@linuxfoundation.org> References: <20250429161051.743239894@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ping-Ke Shih commit 3e5e4a801aaf4283390cc34959c6c48f910ca5ea upstream. When removing kernel modules by: rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core Driver uses skb_queue_purge() to purge TX skb, but not report tx status causing "Have pending ack frames!" warning. Use ieee80211_purge_tx_queue() to correct this. Since ieee80211_purge_tx_queue() doesn't take locks, to prevent racing between TX work and purge TX queue, flush and destroy TX work in advance. wlan0: deauthenticating from aa:f5:fd:60:4c:a8 by local choice (Reason: 3=DEAUTH_LEAVING) ------------[ cut here ]------------ Have pending ack frames! WARNING: CPU: 3 PID: 9232 at net/mac80211/main.c:1691 ieee80211_free_ack_frame+0x5c/0x90 [mac80211] CPU: 3 PID: 9232 Comm: rmmod Tainted: G C 6.10.1-200.fc40.aarch64 #1 Hardware name: pine64 Pine64 PinePhone Braveheart (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] sp : ffff80008c1b37b0 x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0 x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000 x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000 x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964 x11: 0000000000000000 x10: 000000000000005d x9 : ffff8000802af2b0 x8 : ffff80008c1b3430 x7 : 0000000000000001 x6 : 0000000000000001 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000 Call trace: ieee80211_free_ack_frame+0x5c/0x90 [mac80211] idr_for_each+0x74/0x110 ieee80211_free_hw+0x44/0xe8 [mac80211] rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio] sdio_bus_remove+0x44/0x180 device_remove+0x54/0x90 device_release_driver_internal+0x1d4/0x238 driver_detach+0x54/0xc0 bus_remove_driver+0x78/0x108 driver_unregister+0x38/0x78 sdio_unregister_driver+0x2c/0x40 rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs] __do_sys_delete_module.isra.0+0x190/0x338 __arm64_sys_delete_module+0x1c/0x30 invoke_syscall+0x74/0x100 el0_svc_common.constprop.0+0x48/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x3c/0x158 el0t_64_sync_handler+0x120/0x138 el0t_64_sync+0x194/0x198 ---[ end trace 0000000000000000 ]--- Reported-by: Peter Robinson Closes: https://lore.kernel.org/linux-wireless/CALeDE9OAa56KMzgknaCD3quOgYuEHFx9_hcT=OFgmMAb+8MPyA@mail.gmail.com/ Tested-by: Ping-Ke Shih # 8723DU Signed-off-by: Ping-Ke Shih Link: https://patch.msgid.link/20240822014255.10211-2-pkshih@realtek.com Signed-off-by: Ladislav Michl Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/realtek/rtw88/main.c | 2 +- drivers/net/wireless/realtek/rtw88/tx.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) --- a/drivers/net/wireless/realtek/rtw88/main.c +++ b/drivers/net/wireless/realtek/rtw88/main.c @@ -2146,7 +2146,7 @@ void rtw_core_deinit(struct rtw_dev *rtw destroy_workqueue(rtwdev->tx_wq); spin_lock_irqsave(&rtwdev->tx_report.q_lock, flags); - skb_queue_purge(&rtwdev->tx_report.queue); + ieee80211_purge_tx_queue(rtwdev->hw, &rtwdev->tx_report.queue); skb_queue_purge(&rtwdev->coex.queue); spin_unlock_irqrestore(&rtwdev->tx_report.q_lock, flags); --- a/drivers/net/wireless/realtek/rtw88/tx.c +++ b/drivers/net/wireless/realtek/rtw88/tx.c @@ -169,7 +169,7 @@ void rtw_tx_report_purge_timer(struct ti rtw_warn(rtwdev, "failed to get tx report from firmware\n"); spin_lock_irqsave(&tx_report->q_lock, flags); - skb_queue_purge(&tx_report->queue); + ieee80211_purge_tx_queue(rtwdev->hw, &tx_report->queue); spin_unlock_irqrestore(&tx_report->q_lock, flags); }